SMC Networks EX600-SEC Series Operation Manual page 37

No. Problem
L/A IN and L/A OUT LEDs
are OFF.
11
L/A IN and L/A OUT
Green LED is ON.
ERR LED is Double
∗
flashing.
12
ERR LED is flashing.
RUN LED is OFF.
13 RUN LED is flashing.
RUN LED is single
∗
flashing.
∗: Refer to page 21 "LED display" for details of LED status.
Presumed cause
LINK has not yet been
established.
LINK is established but
data has not been
received.
Communication error
(Application watchdog
timeout)
Communication setup
∗
error
SI unit is initialized.
∗ Pre-operational status
Safe operational status
Troubleshooting
Check the following and restart.
(1)Check if the power is supplied to the EtherCAT device
one level above. (When L/A IN LED is OFF.)
(2)Check that the connectors of L/A IN and L/A OUT
communication cables are connected and there are
no broken wires.
(3)Keep noise sources away from the communication
cable.
∗: The L/A OUT LED will be OFF if the BUS OUT connector is
not used.
Check the following and restart.
(1)Check the master condition and run the master.
(2)Check whether the L/A LEDs of the EtherCAT devices
two or more levels above are off. If so, please check if
the power is supplied.
(3)Check that the communication connector is not loose
and there are no broken wires.
(4)Keep noise sources away from the communication
cable.
Check the following and restart.
(1)Check the master condition and run the master.
(2)Check if the power is supplied to the EtherCAT
device.
(3)Check that the communication connector is not loose
and there are no broken wires.
Check the master configuration and the system
structure.
Download an appropriate XML file from SMC website
and perform configuration.
Check the master condition and RUN the master.
Check the master condition and RUN the master.
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No.EX##-OMO0027